Psy 524 - Ainsworth
MANOVA
Try and write in meaningful sentences; clear and concise
Organization 1 – organized by type of test
Paragraph 1 – Intro – tell what you did, define variables, assumptions, etc.
Multivariate tests
 Do each main effect first, followed by 2-way interactions, then three-way interactions, etc.
 Cite F, p and (partial) eta-squared.
 …Wilk’s Lambda = _________, approximate F(dfeffect, dferror) = ________, p < (=)
_________, η2 = _________.
Univariate tests
 If there are significant multivariate tests
 When shifting from one type of analysis to another explain why there is a shift. “In order to
explain the pattern of differences among the IVs on individual DVs, univariate analysis of
variance were examined” except use the iv and dv names instead of just IVs and DVs.
 Do each main effect first, followed by 2-way interactions, then three-way interactions, etc.
 Cite F, p and (partial) eta-squared
 …F(dfeffect, dferror) = ________, p < (=) _________, η2 = _________.
Individual Comparisons
 If there are significant univariate tests
 Any effect with more than two levels needs to be tested with comparisons among pairs of the
levels (or combinations therein; e.g. linear trend, g3 vs. g2+g1/2, etc.)
 With any comparison you need to report the means for the groups “Men (M = 7.2) were
significantly higher on scores of aggression than women (M = 2.3), F(dfeffect, dferror) =
________, p < (=) _________, η2 = _________.
 Comparisons can be planned or post hoc.
 Report all comparisons
_ _ _ _ _ _ ________________________________________________________________________
Organization 2 – organized by effect
Paragraph 1 – Intro – tell what you did, define variables, assumptions, etc.
1st Main Effect
 Multivariate test
 If multivariate test is significant than do univariate test
 If univariate test has more than 2 levels than do comparisons
2st Main Effect
 Multivariate test for this effect only
 If multivariate test is significant than do univariate test for this effect only
 If univariate test has more than 2 levels than do comparisons for this effect only
Psy 524 - Ainsworth
MANOVA
Nth Main effect, etc.
1st 2-way interaction
 Multivariate test
 If multivariate test is significant than do univariate test
 If univariate test has more than 2 levels than do comparisons
2st 2-way interaction
 Multivariate test for this effect only
 If multivariate test is significant than do univariate test for this effect only
 If univariate test has more than 2 levels than do comparisons for this effect only
Nth 2-way interaction.
Higher order effects, etc.